1916442946 has 16 divisors (see below), whose sum is σ = 3320468640. Its totient is φ = 819868480.

The previous prime is 1916442851. The next prime is 1916442947. The reversal of 1916442946 is 6492446191.

It is a junction number, because it is equal to n+sod(n) for n = 1916442896 and 1916442905.

It is not an unprimeable number, because it can be changed into a prime (1916442947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561716 + ... + 2562463.

It is an arithmetic number, because the mean of its divisors is an integer number (207529290).

Almost surely, 2^1916442946 is an apocalyptic number.

1916442946 is a deficient number, since it is larger than the sum of its proper divisors (1404025694).

1916442946 is a wasteful number, since it uses less digits than its factorization.

1916442946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124209.

The product of its digits is 373248, while the sum is 46.

The square root of 1916442946 is about 43777.1966439150. The cubic root of 1916442946 is about 1242.1249866654.

The spelling of 1916442946 in words is "one billion, nine hundred sixteen million, four hundred forty-two thousand, nine hundred forty-six".